Horn antenna



FIG. 1 is a top perspective view of a first embodiment of a horn antenna, in accordance with our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a bottom perspective view thereof;

FIG. 9 is a top perspective view of a second embodiment of a horn antenna, in accordance with our new design;

FIG. 10 is a front view thereof;

FIG. 11 is a rear view thereof;

FIG. 12 is a left view thereof;

FIG. 13 is a right view thereof;

FIG. 14 is a top plan view thereof;

FIG. 15 is a bottom plan view thereof; and,

FIG. 16 is a bottom perspective view thereof.

The broken lines in the drawings depict parts of the horn antenna only and form no part of the claimed design. 

CLAIM The ornamental design for a horn antenna, as shown and described. 